petulant (adj.)
- arbitrary
- bad-tempered
- bilious
- cantankerous
- capricious
- captious
- catty
- choleric
- complaining
- crabbed
- crabby
- cranky
- cross
- crotchety
- disappointed
- discontented
- disgruntled
- displeased
- dissatisfied
- envious
- fanciful
- fantastic
- faultfinding
- flaky
- fractious
- freakish
- fretful
- grouchy
- grumbling
- grumpy
- harebrained
- howling
- huffish
- huffy
- ill-humored
- ill-tempered
- impatient
- irascible
- irritable
- kinky
- maggoty
- malcontent
- moody
- motiveless
- mournful
- murmuring
- nagging
- notional
- peevish
- perverse
- pettish
- plaintive
- plangent
- querulous
- quirky
- rebellious
- resentful
- restive
- restless
- shrewish
- snappish
- sorrowful
- sour
- splenetic
- sulky
- temperamental
- testy
- unaccommodating
- uneasy
- unfulfilled
- ungratified
- unhappy
- unreasonable
- unrestrained
- unsatisfied
- vagrant
- vixenish
- wailful
- wanton
- waspish
- wayward
- whimsical
- whiny
